ADC0804 datasheet(5/17 Pages) RENESAS

No de pièce	ADC0804

Description	8-Bit, Microprocessor-Compatible, A/D Converters

PDF	17 Pages

Scroll/Zoom	100%

Fabricant	RENESAS [Renesas Technology Corp]

Site Internet	http://www.renesas.com

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5 / 17 page

ADC0803, ADC0804

FN3094 Rev 4.00

Page 5 of 17

August 2002

FIGURE 1C. t0H

FIGURE 1D. t0H, CL = 10pF

FIGURE 1. THREE-STATE CIRCUITS AND WAVEFORMS

Timing Waveforms (Continued)

10K

V+

DATA

OUTPUT

V+

2.4V

90%

50%

10%

t0H

0.8V

DATA

OUTPUTS

VOI

tr = 20ns

V+

10%

Typical Performance Curves

FIGURE 2. LOGIC INPUT THRESHOLD VOLTAGE vs SUPPLY

VOLTAGE

FIGURE 3. DELAY FROM FALLING EDGE OF RD TO OUTPUT

DATA VALID vs LOAD CAPACITANCE

FIGURE 4. CLK IN SCHMITT TRIP LEVELS vs SUPPLY

VOLTAGE

FIGURE 5. fCLK vs CLOCK CAPACITOR

-55oC TO 125oC

1.8

1.7

1.6

1.5

1.4

1.3

4.75

4.50

5.00

5.25

5.50

V+ SUPPLY VOLTAGE (V)

500

400

300

200

100

LOAD CAPACITANCE (pF)

200

400

600

800

1000

3.5

3.1

2.7

2.3

1.9

1.5

4.50

V+ SUPPLY VOLTAGE (V)

-55oC TO 125oC

VT(-)

VT(+)

4.75

5.00

5.25

5.50

1000

CLOCK CAPACITOR (pF)

100

1000

R = 10K

R = 50K

R = 20K

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